Re: Dell PERC H330: no disks, no volumes

[Brad Spencer <brad%anduin.eldar.org@localhost>]

Edgar Fuß <ef%math.uni-bonn.de@localhost> writes:

>> There is a PERC H330 and a PERC HBA330 and the Dell PERC9 user manual
>> (includes the H330) says you can boot it in HBA mode. Not sure if
>> that means that you can chose the firmware.
> When I set the H330 to HBA mode, it still attaches as mfii0, the only 
> difference to RAID mode being that the attachment in HBA mode says
> 	scsibus0 at mfii0: 0 targets, 8 luns per target
> instead of
> 	scsibus0 at mfii0: 32 targets, 8 luns per target
> in RAID mode.
>
> I tried to force it to use mpii (by adding the PCI Id in mpii.c and 
> disabling mfii in the kernel config, but that didn't work either 
> (I had the faint hope the controller would use the MPT-2 protocol in 
> HBA mode despite showing the RAID PCI Ids).
>
> What /does/ work is setting the controller to RAID mode and create two 
> volumes with a one-element RAID-0. But that feels like crazy.


In the foggy recesses of my memory this is Just How It Is Done.  At my
final $DAYJOB we had a set of systems that had some PERC controller in
them.  The desire was to present the raw disks to Hadoop and the only
way that could be done was to create a virtual disk for each physical
device.  There was no other option available to us.



-- 
Brad Spencer - brad%anduin.eldar.org@localhost - KC8VKS - http://anduin.eldar.org